The most common and most likely answer to this crossword clue is the 7 letter word LOOPIER
I've seen this crossword clue in The Daily Telegraph
L
O
O
P
I
E
R
More clues leading to the result LOOPIER
- More bananas, look: old and terribly ripe
- Less sensible place to go: area in Wigan booked
- Little room on raised platform for more bananas
- Small room on seaside structure more absurd
- Can one going there be said to be more idiotic?
- It’s more absurd to play polo? That’s right
- Dafter ladies maybe where seaside entertainment takes place?
- Throne room column becoming more unbalanced
- More unstable column supporting toilet
- Toilet on jetty — even dafter
Buddy explains!

The straight part
We know that "Dafter" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case dafter = loopier.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does LOOPIER mean?
LOOPIER adjective- Having loops.
- Idiotic, crazy or drunk.